US3223066A

US3223066A - Boat structure

Info

Publication number: US3223066A
Application number: US432943A
Authority: US
Inventors: Alfred D Irving
Original assignee: Individual
Current assignee: Individual
Priority date: 1965-02-12
Filing date: 1965-02-12
Publication date: 1965-12-14
Anticipated expiration: 1982-12-14

Description

A. D. IRVING BOAT STRUCTURE Dec. 14, 1965 2 Sheets-Sheet 1 Filed Feb. .12, 1965 I NVENTOR Dec. 14, 1965 A. D. IRVING 3,223,066

BOAT STRUCTURE Filed Feb. 12, 1965 2 Sheets-Sheet 2 United States Patent 3,223,066 BOAT STRUCTURE Alfred D. Irving, 7290 21st Ave., Ville St. Michel, Quebec, Canada Filed Feb. 12, 1965, Ser. No. 432,943 Claims. ((11. 114-665) This invention relates to improvements in watercraft of the high speed planning type.

It is conventional practice in the design of high speed watercraft to provide various types of hydrofoils and similar devices such as for instance planning depths whereby a comparatively small amount of the watercraft actually touches the water surface during a high speed run. In such designs it is also conventional practice to provide planning depths staggered in position from the forward end of the craft to the aft end.

While such methods do in fact aid in increasing the speed of the watercraft the devices resorted to ordinarily increase drag on water surface which results in the utmost speed being somewhat limited. Alternatively, larger and more powerful motors have been resorted to in order to increase the speed of watercraft, this in turn results in increased drag due to the inefiiciency of the planning or hydrofoil surfaces.

By resort to the present invention however, a low drag and highly eflicient watercraft is obtained with increased manoeuvreability, particularly on high speed turns.

It is an object of the present invention therefore to provide a watercraft wherein a series of planes are utilized in order that the craft may be progressively lifted from the water as the speed is increased thereby to reduce the Water drag thereon.

It is a still further object of the present invention to provide a watercraft wherein means are provided to steer the craft by the action of the wind force on movable portions as the craft is propelled through the water. A still further object of the present invention is to provide a watercraft which incorporates together with the supporting planes a transition plane in order that the lifting force from each series of planes will be transferred gradually thereby retaining an even force during acceleration of the craft.

Other objects and features of the invention will be apparent from the following detailed description and accompanying drawings in which like numerals refer to like parts throughout the various views:

FIGURE 1 is a bottom plane view of a presently preferred embodiment of the invention;

FIGURE 2 is a frontal view of the embodiment as illustrated in FIGURE 1;

FIGURE 3 is a side view of the embodiment as illussrated in FIGURE 1;

FIGURE 4 is an enlarged plan view of a movable aileron for use with the present invention;

FIGURE 5 is a section along the line 55 of FIGURE FIGURE 6 is a view in the direction of the arrow 5 in FIGURE 4;

FIG. 7 is a view of a rudder;

FIG. 8 is a view of the pulley system for actuating the tillers.

With reference to FIGURE 1, FIGURE 2, and FIG- URE 3, a watercraft indicated generally as 11 is illus trated and comprises a hull portion 12 threaded with a pair of

side Wings

13 and 14. The wings extend substantially the length of the hull 12 and curve downwardly as shown in FIGURE 2 to provide the rear

most tip

15 and 16.

A first pair of

planes

17 and 18 are secured to the underside of the hull 12 in parallel, spaced apart relationship to extend substantially the length of the hull 12. The

planes

17 and 18 project a distance below the hull bottom in order to be immersed in the water while the craft 11 is at rest.

At intermediate plane 19 is secured to the underside of the hull 12 and projects there below a distance somewhat greater than the distance of the pair of

planes

17 and 18.

A second pair of

planes

20 and 21 are secured to the underside of the first pair of

planes

17 and 18 and project a distance there below somewhat greater than the projection distance of the plane 19.

In this way a pair of

side planes

17 and 18 and a

second pair

20 and 21 are provided whereby progressively the craft 11 can be lifted from the water as it proceeds in a forward direction. The mid planes 19 serves to act as a transition support during the change from the first pair of

planes

17 and 18 to the second pair of

planes

20 and 21.

During the forward motion of the craft the

side wings

15 and 16 depending downwardly in curved fashion have their lower most endwise tips as at 22 and 23 touching the surface of the water. During extremely high speed runs the craft is entirely borne on the second pair of

planes

20 and 21. During normal manoeuvres one or the other of the

tips

22 and 23 will touch the surface of the water this having the effect of stabilizing the craft from too much roll during a high speed turn.

With reference to FIGURE 4, FIGURE 5, and FIG- URE 6, means for controlling the aileron is illustrated wherein an aileron as at 24 or 25 is provided in the forward portion of each of the

wings

22 and 23 respectively. As shown in the enlargement in FIGURE 4 the aileron 25 is hinged on the hinge points as at 26 and is adapted to move upwardly or downwardly according to control responses as received from the manual controls in the cockpit.

It should be noted here that the particular arrangement of control as required for the operation of the craft can be any one of several conventional types of control and for this reason the specific type has not been illustrated in the drawings.

It is considered preferable however to provide a hydraulic cylinder 27 operable on the link arm 28 in order that the shaft 29 secured rigidly to the aileron 25 at the hinge point 26 and be operated from a remote position such as the cockpit indicated at 30 in FIGURE 3.

With reference to FIGURE 7 and FIGURE 8, separate means for controlling the manoeuvres of the craft are illustrated wherein a rudder 31 is shown hingeably secured to the rudder post 32 whereby the rudder 31 can be folded up out of the way into the well as at 33 upon the craft being operated in shallow water.

A conventional tiller 34 is provided on each rudder, the operation of the

tiller post

32 and 35 being effected through the pulley system 36.

It will be further understood that other means for controlling the rudder can be resorted to and that the means shown are done by way of example only.

The driving or propulsion means for the device can be an outboard motor as at 37 in FIGURE 3 or other means such as an inboard motor, can be resorted to if so desired. In addition it will be understood that still further means such as for instance reaction type motors can also be utilized with this device.

In use the craft can be suitably propelled over the water surface and during acceleration the first and second pair of planes together with the mid plane act to lift the craft clear out of the water. Also at this time the

side wings

13 and 14 also contribute to lift by means 3 of the vt 'ater passing' there beneath to provide a lifting three; as a "eeleratien rogre ses the first pair or plaiies 1? and 18 lift lea'r er the w terand the lower planes 2e and 21 together with the mid iaaes 19 erves to support the craft. At still further high speeds the mid plane 13 leaves the water and the two

planes

20 and 21 support the craft on the water surface together with the aetionof the

side wings

15 and 16. It will also be seen that during de-acceleration the reverse action takes place and the craft gradually sinks back into the water is be floated by the hall 12.

Frdni the fdrgtiing it will be seen that the present invention provides a watercraft with high speed ddfiatiilh ties whereby the craft can be supported on a comparatively small lifting surface during the high speed run and which is adaptable by progressive means to be taken from a fully floating position to a high speed supported position.

It will be further understood that although specific embodiments of the invention have herein been described and illustrated, the invention also contemplates such variations as may fall within the scope of the appended dairies l 1 A water ciaft sern ri in e iiieaiis fer driving said craft dvrifiatr; a trail saving a rat-ward end an aft end: first pair 5f planes secured to the irfider's'ide pfsaid gall iri a fore anid an aii aeii, said first air er planes eing spaced .apartdri paralll relatioriship, aria to are ject was said min and rside; a mid pa e secui'ed is said hull underside in a for rift directiqnpupstan tially parallel to and mid way between said first pair of planes, and to project a distance below said hull uriderside greater than the projection distance of said pair; and, a second pair of planes secured to the undersides of said first pair in a fore and aft direction to project a distance therebelow greater than the projection distance of said mid plane, whereby upon said means driving said craft forwardly in water, said planes will lift said craft suecessi'v'eliy out of the water until supported enthan on said seeend pair of planes, said mid plane acting to add support during transitidii from said first pair to said second plane pairt A Water craft com rising: means for driving said eraft over water; a hull having a forward end and an aft end; a first pair of planes secured to the underside of said hull in a fore and aft direction, said first pair of planes being spaced apart in parallel relationship, and to project below said hull underside; a mid plane secured to said ball underside in a fore and aft direction substantially parallel to and mid way between said first pair of planes, and to project a distance below said hull underside greater than the projection distance of said first pair; a second pair of planes secured to the under= sides of said first pair in a fore and aft direction to project a distance therebelow greater than the projection distance of said mid plane, whereby upon said means driving said craft forwardly in water, said planes will lift said craft successively out of the water until supported entirely on said second pair of planes, said mid plane acting to add support during transition from said first pair to said second plane pair; and a pair of side wings curve downwardly, secured to an extending substantially the length of said craft to either side thereof to aid in supporting and guiding said craft. 7 N

3. A water craft comprising: means for driving said craft over water; a hull having a forward end and an 'aft end; a first pair of planes secured to the underside of said hull in a fore and aft direction, said first pair of planes being spaced apart in parallel relationship, and to project below said hull underside; a mid plane secured to said hull underside in a fore and aft direction sub stantially parallel to and mid way between said first pair of planes, and to project a distance below said hull underside greater than the projection distance of said first pair; a second pair of planes secured to the underside of said first" pair in a fore and aft direction to project a distance therebelow greater than the projection distance of said mid plane, whereby upon said means driving said craft forwardly in water, said planes will lift said craft successfully out of the water until supported entirely on said second pair of planes, said mid plane acting to add support during transition from said first pair to said second plane pair; rudder means for steering said craft; and, a pair of side wings curved downwardly, secured to and extending substantially the length of said craft to either side thereof to aid in supporting and guiding said craft.

4. A Water craft comprising: means for driving said craft over water; a hull having a forward end and an aft end; a first pair of planes secured to the underside of said hull in a fore and aft direction, said first pair of planes being spaced apart in parallel relationship, and to project below said hull underside; a mid plane secured to said hull underside in a fore and aft direction substantially parallel to and mid way between said first pair of planes, and to project a distance below said hullunderside greater than the projection distance of said first pair; a second pair of planes secured to the under-- sides sf said first pair in a fore and aft direction to pro ject a distance therebelow greater than the projection distafice of" said r'nid plane, whereby upon said means driving said craftforwardly in water, said planes will lift s aid craftsuccessively out of the Water until supported entirely as said second pair of planes, said mid plane acting to add support during transition from said first pair to said second pittrie pair; a pair of side wings curved downwardly, secured to and extending substantially the length of said craft to either side thereof to aid in supporting and guiding said craft; and an aileron device secured to the forward end of each said side wings and operable to steer said craft at high speeds.

5. A water craft comprising: means for driving said craft over water; a hull having a forward end and an aft end; a first pair of planes secured to the underside of said hull in a fore and aft direction, said first pair of planes being spaced apart in parallel relationship, and to project below said hull underside; a mid plane secured to said hull underside in a fore .and aft direction substantially parallel to and mid way between said first pair of planes, and to project a distance below said hull underside greater than the projection distance of said pair; a second pair of planes secured to the undersides of said first pair in a fore and aft direction to project a distance therebelow greater than the projection distance of said mid plane, whereby upon said means driving said craft forwardly in water, said planes will lift said craft successively out of the water until supported entirely on said second pair of planes, said mid plane acting to add support during transition from said first pair to said second plane pair; rudder means for steering said craft; a pair of side wings curved downwardly, secured to and extending substantially the length of said craft to either side thereof to aid in supporting and guiding said craft; and an aileron device secured to the forward end of each said side wings and operable to steer said craft at high speeds.

No references cited.

MILTON BUCHLER, Primary Examiner.

ANDREW H,- FARRELL, Examiner.

Claims

1. A WATER CRAFT COMPRISING: MEANS FOR DRIVING SAID CRAFT OVER WATER; A HULL HAVING A FORWARD END AN AFT END: A FIRST PAIR OF PLANES SECURED TO THE UNDERSIDE OF SAID HULL IN A FORE AND AFT DIRECTION, SAID FIRST PAIR OF PLANES BEING SPACED APART IN PARALLEL RELATIONSHIP, AND TO PROJECT BELOW SAID HULL UNDERSIDE; A MID PLANE SECURED TO SAID HULL UNDERSIDE IN A FORE AND AFT DIRECTION SUBSTANTIALLY PARALLEL TO AND MID WAY BETWEEN SAID FIRST PAIR OF PLANES, AND TO PROJECT A DISTANCE BELOW SAID HULL UNDERSIDE GREATER THAN THE PROJECTION DISTANCE OF SAID PAIR; AND, A SECOND PAIR OF PLANES SECURED TO THE UNDERSIDES